Tool length sensor for CNC machines

Description

Professional tool length sensor for CNC machines

In order to be able to carry out high-quality milling work, it is essential that the tool length and the zero point in the Z-axis of the CNC machines are measured precisely.
The precision tool length sensor enables fast, precise and automatic measurement of the tool length of milling cutters, drills etc. after each tool change, as well as tool breakage monitoring.
Time-consuming manual calibration, such as scratching the workpiece surface, is no longer necessary.
In order to meet the requirements for extremely high precision, the tool length sensor has a solid, finely milled base body with precise 16 mm flank guidance of the sensing cylinder. The functional principle with linear guide is absolutely free of lateral forces, so that even sensitive and very small tools can be measured.

The elimination of electromechanical switching contacts also eliminates any disruptive electrical bounce, so that the switching point is always in exactly the same position.

An inductive sensor is used as a switching sensor, which guarantees a repeat accuracy of between 0.01 and 0.02 mm.
The dimensions of the 18 mm diameter scanning surface have been selected to provide an optimum basis for exact measurements not only for the smallest milling cutter diameters but also for larger milling cutters with roughing geometry.
The low-profile design allows installation on most CNC machines both in fixed mounting and in flying use.

Technical data

- Low profile design with a precisely guided 18mm sensing face
- Signal processing through precise inductive sensor
- No contact bounce due to the absence of mechanical switching contacts
- Precise repeat accuracy of 2/100mm
- No movement of the switching point position
- Measuring point also reliable in the event of vibrations and shocks
- No reduction in service life due to number of switching cycles
- No failure due to dirty or corroded contacts
- Control of the switching point via LED display
- Length of connection cable 2 m
- Protection class: IP 65
- Operating voltage: 10-30 V DC Switching contact: max. 150mA
- Version: PNP normally closed (NC) , NPN normally closed (NC)

TipThe PNP NC variant is better suited for connection to Con3/4 of the controller, whereas the NPN NC variant is better suited for connection to Con2 of the controller.